Modal Analysis of a Turbine Blade Based on Fluid-Thermal-Structural Coupling

Qiang Zhang; Wei Zhao; Tian Yuan Liu; Yong Hui Xie

doi:10.4028/www.scientific.net/AMM.641-642.300

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 641-642Modal Analysis of a Turbine Blade Based on...

Modal Analysis of a Turbine Blade Based on Fluid-Thermal-Structural Coupling

Abstract:

The dynamic analysis of a turbine blade is carried out. The pre-stress due to rotation and fluid-thermal-structure coupling effect are considered. At first flow analysis and thermal analysis on the blade and corresponding stator-rotor blade passage are conducted to acquire the flow field and body temperature field of blade. Then stress in the blade is analyzed considering pressure and temperature in a static condition, and the matrix for pre-stress effect and an additional matrix due to the external temperature and pressure loading are obtained. And so the dynamic equation of the blade system including the pre-stress effect and the coupling effect is established. The frequencies and vibration modes of the blade system in six different coupling conditions are obtained by using of ANSYS and CFX. It is found that the fluid-thermal-structural coupling field has a significant influence on the blade natural frequencies. Also, the impact of temperature on frequency is embodied more in the change of material elastic modulus E with temperature than in the thermal stress caused by temperature gradient.

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Periodical:

Applied Mechanics and Materials (Volumes 641-642)

Pages:

300-303

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.641-642.300

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Online since:

September 2014

Authors:

Qiang Zhang, Wei Zhao, Tian Yuan Liu, Yong Hui Xie*

Keywords:

Coupling, Fluid-Thermal-Structural, Modal Analysis, Turbine Blade

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* - Corresponding Author

References

[1] Yonghui Xie, Kun Lu, Le Liu, and Gongnan Xie: Mathematical Problems in Engineering. Vol. 2014 (1) (2014), pp.560-570.

Google Scholar

[2] S. -Y. Ho and A. Paull: Aerospace Science and Technology, vol. 10(5) (2006), p.420–426.

Google Scholar

[3] Yuansen Xie, Yimin Li, Zhongning Zhou and Yongxia Gu: Noise and Vibration Control. Vol. (4) (2009), pp.34-37 (in Chinese).

Google Scholar

[4] Zhongning Zhou, Yimin Li, Yongxia Gu, Yuansen Xie, Wan Sun: Journal of China University of Mining & Technology. Vol. 38(3) (2009), pp.401-405 (in Chinese).

Google Scholar

[5] Xiaobo Zheng, Xingqi Luo, Haijun Wu: Journal of Xi'an University of Technology, vol. 21(4) (2005), p.342–346 (in Chinese).

Google Scholar

[6] Shiyong Huang, Zhiyong Wang: Missile and Space Vehcile. Vol. (5) (2009), pp.50-53 (in Chinese).

Google Scholar